Adapt for latexmk

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- `latexmk` can automatically call citeproc-lua when compiling with `pdflatex` or `xelatex` (thanks to [John Collins](http://personal.psu.edu/~jcc8/)).
+
 ## [v0.2.1] - 2022-09-18
 
 ### Changed

citeproc/citeproc-cli.lua

@@ -101,7 +101,7 @@ local function read_aux_file(aux_file)
     if match then
       bib_style = string.sub(match, 2, -2)
     else
-      match = string.match(line, "^\\bibdata%s*(%b{})")
+      match = string.match(line, "^\\csl@data%s*(%b{})")
       if match then
         for _, bib in ipairs(util.split(string.sub(match, 2, -2), "%s*,%s*")) do
           table.insert(bib_files, bib)

example/README.md

@@ -24,7 +24,7 @@ lualatex example.tex
 
 The `latexmk` can also be used.
 ```bash
-latexmk -cd -lualatex -bibtex- example/example.tex
+latexmk -cd -lualatex example/example.tex
 ```
 
 For engines other than LuaLaTeX, the `citeproc` executable is required to run as BibTeX.

latex/citation-style-language.sty

@@ -745,8 +745,11 @@
   { \clist_put_right:Nn \l__csl_bib_resources_clist {#2} }
 
 
+% In earlier time, \bibdata{xxx.json} was used but this causes latexmk unable
+% to find xxx.json.bib and it refuses to run the $bibtex procedure.
+% John Collins suggests using a different command than \bibdata.
 \clist_new:N \g__csl_aux_bib_files_clist
-\cs_set:Npn \bibdata #1
+\cs_new:Npn \csl@data #1
   { \clist_gput_right:Nn \g__csl_aux_bib_files_clist {#1} }
 
 
@@ -759,7 +762,7 @@
 \cs_new:Npn \__csl_write_aux_bibdata:n #1
   {
     \if@filesw
-      \iow_now:Nx \@auxout { \token_to_str:N \bibdata {#1} }
+      \iow_now:Nx \@auxout { \token_to_str:N \csl@data {#1} }
     \fi
   }